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[settings] Allow "set" command to take an empty value

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Allow "set <variable>" to be used to set the variable to an empty
value, if permitted by the setting type.  Note that some settings
backends do not differentiate between an empty value and a
non-existent value, so this may or may not be equivalent to "clear
<variable>".

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown 2010-11-22 21:11:03 +00:00
parent debbea1123
commit a180c7526c
1 changed files with 1 additions and 1 deletions
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2
src/hci/commands/nvo_cmd.c
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@ -87,7 +87,7 @@ static struct option_descriptor set_opts[] = {};
/** "set" command descriptor */
static struct command_descriptor set_cmd =
COMMAND_DESC ( struct set_options, set_opts, 2, MAX_ARGUMENTS,
COMMAND_DESC ( struct set_options, set_opts, 1, MAX_ARGUMENTS,
"<setting> <value>", "" );
/**